In a mixed design factorial ANOVA, the between subjects factor (A) has two levels and the repeated measures factor (B) has three levels. A significant F is found for the main effect of the between subjects factor. We may conclude that _____
a. the mean of level 1 of factor A is significantly different from the mean of level 2 of Factor A
b. There is a significant difference, but we don't know where it is.
c. The mean of Factor A is significantly different from the mean of Factor B
d. The interaction between Factors A and B is significant.
A
The significant F means that there is a difference between means. Because there are only two levels of Factor A, we know that the means for these two levels must be significantly different.
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